Comment by Zak

There is such a world, and we live in it. Banks might reduce fraud by repeatedly performing credit checks on customers, for example, but that's usually illegal.

Remote attestation doesn't check that there isn't malware; it checks that the OS is approved by one of a short list of corporations. Passing that check is correlated with a reduced risk of certain types of malware being present, but is not quite the same as checking for malware.